Special tool for disconnecting of transformer casing lead

Abstract

The invention provides a special tool for disconnecting of a transformer casing lead, which comprises a DC motor system, a power-enhanced system, a transmission shaft, a casing A, a casing B, a handle, a battery, a reverse retreated wire, a motor power switch and a positive and reverse switch, wherein the battery is arranged in the DC motor system; the DC motor system is connected with the power-enhanced system; one side, far away from the DC motor system, of the power-enhanced system is connected with the input end of the transmission shaft; the output end of the transmission shaft is connected with the casing A; one end of the handle is arranged on the side wall of the power-enhanced system and the other end is connected with the casing B through the reverse retreated wire; the casing Aand the casing B are arranged oppositely with a distance interval, and the center lines are located on the same straight line; and the motor power switch and the positive and reverse switch are arranged on the handle. Through improving and optimizing the original and traditional common operation tool, single-person operation is realized, and the disconnecting time is shortened.

Description

technical field [0001] The present application relates to an operating tool for a power system, in particular to a special tool for disconnecting and connecting lead wires of transformer bushings. Background technique [0002] During the routine test of the transformer, the DC resistance, winding deformation, dielectric loss test and other test items need to remove the transformer lead wire. When removing the lead wire, we often find that the bolts are corroded, because the connection between the lead wire and the bushing conductive rod is small and the position is different. High, difficult to grasp the focus point, two workers are required to use existing tools such as wrenches, it is difficult to remove and restore, or use an insulated bucket arm car, which requires vehicle support and debugging time, resulting in prolonged power outages for transformers, thereby prolonging power outages for users. These routine test items of the transformer are crucial to the correct eva...

AI Technical Summary

Problems solved by technology

[0002] During the routine test of the transformer, the DC resistance, winding deformation, dielectric loss test and other test items need to remove the transformer lead wire. When removing the lead wire, we often find that the bolts are corroded, because the connection between the lead wire and the bushing conductive rod is small and the position is different. High, difficult to grasp the focus point, two workers are required to use existing tools such as wrenches, it is difficult to remove and restore, or use an insulated bucket arm car, which requires vehicle support and debugging time, resulting in prolonged power outages for transformers, thereby prolonging power outages for users. These routine test items of the transformer are crucial to the correct evaluation of the state of the transformer, so special tools for removing the lead wires are urgently needed

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